Benefit Plans (Stock Grant Fair Value Assumptions) (Details) - $ / shares	12 Months Ended
Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	0.00%	0.00%	0.00%
Expected volatility	62.55%	57.21%	57.82%
Average risk-free interest rate	4.69%	3.64%	1.02%
Expected life	4 years 7 months 6 days	5 years 9 months 18 days	6 years
Target 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
EPS Targets (in dollars per share)	$ 16.35
Restricted stock eligible for vesting (in hundredths)	40.00%
Target 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
EPS Targets (in dollars per share)	$ 20.45
Restricted stock eligible for vesting (in hundredths)	60.00%
Target 3
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
EPS Targets (in dollars per share)	$ 25.30
Restricted stock eligible for vesting (in hundredths)	100.00%

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The vesting percentage of restricted stock vesting.

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Share-Based Compensation Arrangement by Share-based Payment Award, Terms Of Award, Earnings Per Share Target

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